=> Answer: NOT GIVEN
Key words: have recently changed
In the first paragraph, the author just mentions that “applying the most conservative estimates to current demographic trends” to predict the future population. No information about recent changes in population predicting methods is given . So the answer is NOT GIVEN.
=> estimate = predict
=> population change = demographic trends
1. Human beings are responsible for some of the destruction to food-producing land.
=> Answer: True
Key words: responsible, destruction.
In paragraph 3, “We despoiled most of the land we work, often turning verdant, natural ecozones into semi-arid deserts”. It means that human action is the cause of the damage to agricultural land. We destroyed most of the land we work, causing natural ecozones to be turned into semi-arid deserts. So the statement given is TRUE.
=> ecozones = areas where there is a natural community of plants and animals
=> semi-arid = with little water
1. The crops produced in vertical farms will depend on the season.
=> Answer: False
Key words: depend, seasons, produced
At the beginning of paragraph 2, the author refers to an advantage of vertical farming which is ” sustainable production of a safe and varied food supply (through year-round production of all crops) Briefly, crops are produced in environmentally- controlled conditions and not influenced by natural conditions. The statement is FALSE.
1. Some damage to food crops is caused by climate change.
=> Answer: True
Key words: climate change
Paragraph 3 says “However, more often than not now, due to a rapidly changing climate, this is not what happens. Massive floods, long droughts, hurricanes and severe monsoons take their toll each year, destroying millions of tons of valuable crops”. So, due to climate change, adverse natural disasters result in destruction to numerous valuable crops. The statement is TRUE.
=> crops = plants which are grown for food
1. Fertilisers will be needed for certain crops in vertical farms.
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